Pipeline socket flange connector

Abstract

The utility model provides a pipeline bellmouth flange connector which comprises a connecting body, a pressing ring and a pull rod. A through channel is formed in the connecting body, a plurality of first connecting holes distributed in the circumferential direction are formed in the outer portion of the connecting body, a flange is arranged at one end of the connecting body, and the other end of the connecting body is an insertion opening end inserted into a pipeline. The hold-down ring is located at the socket end, and the inner diameter of the hold-down ring is larger than the outer diameter of the socket end; a plurality of second connecting holes which are circumferentially and annularly distributed are formed in the pressing ring, and the pressing ring is detachably connected with the connecting main body through pull rods which are connected in series with the first connecting holes and the second connecting holes. According to the utility model, the pipeline can be connected without cutting off the pipeline, so that the construction difficulty is greatly reduced, the time and the economic cost are saved, and the problem that the stress of the pipeline is damaged due to cutting off is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline connecting technical field, concretely relates to a pipeline socket flange connector. BACKGROUND

[0002] The flange connector is the most commonly used conversion connecting pipe fitting in pipeline reconstruction, and its role is: without welding flanges on the pipeline, the flange connector is installed to realize adding flange interfaces on the pipeline, and the flange interfaces can be used to connect valves, water meters and pipe sections with flanges.

[0003] The existing flange connector is basically a sleeve structure with a flange at one end, and when used, the end without the flange is sleeved on the end of the pipeline and locked to form a flange interface at the end of the pipeline to facilitate flange connection with other pipelines or valves and other equipment.

[0004] However, in the water supply and drainage pipeline, the ductile cast iron pipe, the cement pipe and other pipe materials have the socket end (bell mouth) of the pipeline, and if the flange connector needs to be sleeved on the socket end (bell mouth), it is impossible to do so. Therefore, when the socket end (bell mouth) of the pipeline is encountered during installation and connection, the socket end (bell mouth) needs to be truncated, and then the flange connector is sleeved on the pipeline for installation, and the following disadvantages are caused by truncating the socket end of the pipeline:

[0005] 1. Increase the construction difficulty, time and economic cost.

[0006] 2. Truncating the socket end (bell mouth) of the cement pipe does not comply with the "Water Supply and Drainage Pipeline Construction and Acceptance Specification" GB50268, and the stress of the pipeline is damaged after truncation.

[0007] 3. After truncation, a series of treatments such as corrosion protection need to be performed on the section. INVENTION CONTENTS

[0008] In order to solve the technical problems in the background art, the utility model provides a pipeline socket flange connector.

[0009] The utility model provides a pipeline socket flange connector, which comprises a connecting body, a compression ring and a pull rod.

[0010] The connecting body has a through channel inside, the outer part of the connecting body has a plurality of first connecting holes arranged in a circumferential ring, one end of the connecting body is provided with a flange, and the other end is a socket end for inserting into the pipeline;

[0011] The compression ring is located at the end of the socket end, and the inner diameter of the compression ring is greater than the outer diameter of the socket end; a plurality of second connecting holes are arranged in a circumferential ring on the compression ring, and the compression ring is detachably connected with the connecting body through the pull rod connecting the first connecting holes and the second connecting holes.

[0012] Preferably, the compression ring comprises a left ring body and a right ring body, and the second connecting holes are distributed on the left ring body and the right ring body.

[0013] Preferably, the left ring body and the right ring body are respectively provided with end pieces at two ends thereof, and the connecting holes are respectively arranged on the end pieces.

[0014] Preferably, the inner ring surface of the compression ring is a tapered surface, and the large end of the tapered surface faces the connecting body, and the small end of the tapered surface faces the side away from the connecting body.

[0015] Preferably, an annular flange is arranged between the two ends of the connecting body, and the first connecting holes are circumferentially distributed on the annular flange.

[0016] Preferably, a rib plate is arranged between the annular flange and the connecting body.

[0017] Preferably, a sealing member is arranged outside the connecting body at the spigot end thereof.

[0018] Preferably, the pull rod is a threaded rod or a double-headed bolt, and the pull rod is respectively provided with a fastening nut at two ends thereof.

[0019] In the utility model, a plurality of first connecting holes are arranged circumferentially on the outside of the connecting body, a flange is arranged at one end of the connecting body, and the spigot end of the other end can be inserted into the inside of the pipeline; the compression ring is arranged outside the end where the spigot end is located, a plurality of second connecting holes are arranged circumferentially on the compression ring, and the compression ring is detachably connected with the connecting body through the pull rod which is connected in series with the first connecting holes and the second connecting holes. In use, the compression ring is sleeved on the socket end of the pipeline, and at the same time, the spigot end of the connecting body is inserted into the inside of the pipeline from the socket end of the pipeline to form butt joint; then, the compression ring is connected with the connecting body by the pull rod, so that the compression ring tightly pulls the connecting body to firmly fix the connecting body on the socket end of the pipeline. When the pipe is connected, the pipe is directly connected through the flange on the connecting body. The structure design of the pipeline socket flange connector can complete the connection of the pipeline without cutting the pipeline, greatly reduces the construction difficulty, saves time and economic cost, and avoids the problem of damaging the pipeline stress due to cutting. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A structural schematic view of a pipeline socket flange connector is provided in the utility model;

[0021] Figure 2 A structural schematic view of a connecting body in a pipeline socket flange connector is provided in the utility model;

[0022] Figure 3 A structural schematic view of a compression ring in a pipeline socket flange connector is provided in the utility model;

[0023] Figure 4 The utility model provides a kind of working principle schematic diagram of pipe socket flange connector of the utility model;

[0024] Figure 5 For Figure 4 A-A toward sectional view. DETAILED DESCRIPTION

[0025] With reference Figures 1-3 The utility model provides a kind of pipe socket flange connector, it includes: connecting main body 1, compression ring 2 and pull rod 3.

[0026] Connecting main body 1 inside has through passageway, the outside of connecting main body 1 has a plurality of first connecting holes that are arranged in circumferential ring, and the flange 11 is equipped in one end of connecting main body 1, and the other end is the spigot end 12 for inserting into the inside of pipeline, in use, spigot end 12 is inserted into the inside of pipeline by the socket end of pipeline 5, to make connecting main body 1 and pipeline butt joint.And sealing element 4 is equipped in the outside of spigot end 12 of connecting main body 1, to guarantee the sealing property of spigot end 12 and the connecting place of pipeline 5.

[0027] Compression ring 2 is located in the end of spigot end 12, and the inner diameter of compression ring 2 is greater than the outer diameter of spigot end 12;Compression ring 2 is equipped with a plurality of second connecting holes that are arranged in circumferential ring, to utilize compression ring 2 to be set on the socket end of pipeline 5 and it cannot fall off from socket end.

[0028] Pull rod 3 is threaded rod or stud bolt, and the fastening nut is respectively equipped in both ends of pull rod 3;Pull rod 3 is connected by first connecting hole and second connecting hole to make compression ring 2 and connecting main body 1 connect together, to firmly fix connecting main body 1 on the socket end of pipeline.

[0029] With reference Figures 4-5 In use, compression ring 2 is set on the socket end of pipeline 5, simultaneously, spigot end 12 of connecting main body 1 is inserted into the inside of pipeline 5 by the socket end of pipeline 5 to form butt joint;Then, compression ring 2 and connecting main body 1 are connected by pull rod 3, to make compression ring 2 tightly hold pipeline 5 while pulling connecting main body 1 to make it firmly fixed on the socket end of pipeline 5.In pipe connection, it is directly connected by the flange 11 on connecting main body 1.The whole process does not need to cut pipeline 5, greatly reduces construction difficulty, saves time and economic cost, and avoids the problem of damaging pipeline 5 stress due to cutting.

[0030] Furthermore, in order to further improve the integrity of the pipe socket connector structure, the embodiment is provided with an annular flange 13 between the two ends of the connecting body 1, and the first connecting holes are distributed circumferentially on the annular flange 13, so that the annular flange 13 can limit the insertion depth when the socket end is inserted into the pipe 5 from the socket end of the pipe 5. In order to increase the connection strength between the annular flange 13 and the connecting body 1, the embodiment is provided with a web plate connecting the annular flange 13 and the connecting body 1 on the side where the flange 11 is located.

[0031] Further, the compression ring 2 in the embodiment includes a left ring body 21 and a right ring body 22, and the second connecting holes are distributed on the left ring body 21 and the right ring body 22. The left ring body 21 and the right ring body 22 can be clamped on the socket end of the pipe 5 from both sides, greatly facilitating the quick installation of the compression ring 2. At the same time, since the compression ring 2 is a non-closed ring, the inner diameter of the compression ring 2 has a certain adjustment space. The two ends of the left ring body 21 and the right ring body 22 are respectively provided with end pieces 23, and the connecting holes are respectively arranged on the end pieces 23. The two ends of the left ring body 21 and the right ring body 22 are connected together through the connecting holes on the end pieces 23, and the inner diameter of the compression ring 2 has a certain adjustment space by adjusting the distance between the two ends in the actual operation process.

[0032] Further, the inner surface of the compression ring 2 is a conical surface, the large end of which faces the connecting body 1, and the small end of which faces away from the connecting body 1, so that the compression ring 2 can better fit the conical outer wall of the socket end of the pipe 5.

[0033] As can be seen from the above, the utility model is provided with a plurality of circumferentially annular first connecting holes arranged outside the connecting body 1, a flange 11 arranged at one end of the connecting body 1, and a socket end 12 arranged at the other end of the connecting body 1 and capable of being inserted into the pipe. The compression ring 2 is arranged outside the socket end 12, a plurality of circumferentially annular second connecting holes are arranged on the compression ring 2, and the compression ring 2 is detachably connected with the connecting body 1 through the pull rod 3 connecting the first connecting holes and the second connecting holes. In use, the compression ring 2 is sleeved on the socket end of the pipe 5, and the socket end 12 of the connecting body 1 is inserted into the pipe 5 from the socket end of the pipe 5 to form a butt joint. Then, the compression ring 2 is connected with the connecting body 1 by the pull rod 3, so that the compression ring 2 tightly pulls the connecting body 1 to firmly fix the connecting body 1 on the socket end of the pipe 5. When connecting the pipe, the flange 11 on the connecting body 1 is directly connected. The structure design of the pipe socket flange 11 connector can complete the connection of the pipe without cutting the pipe 5, greatly reducing the construction difficulty, saving time and economic cost, and avoiding the problem of damaging the stress of the pipe 5 due to cutting.

[0034] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A pipe socket flange connector, characterized by The utility model relates to a kind of pipe connecting device, including: Connecting body (1), compression ring (2) and pull rod (3); Connecting body (1) has through passage inside, and the outside of connecting body (1) has several first connecting holes arranged in circumferential ring, and the one end of connecting body (1) is equipped with flange (11), and the other end is mouth end (12) for inserting into pipeline inside; Compression ring (2) is located in the end of mouth end (12), and the inner diameter of compression ring (2) is greater than the outer diameter of mouth end (12);Compression ring (2) is equipped with several second connecting holes arranged in circumferential ring, and compression ring (2) is detachably connected with connecting body (1) by pull rod (3) of first connecting hole and second connecting hole in series.

2. The pipe bell flange connector of claim 1, wherein, Compression ring (2) includes left ring body (21) and right ring body (22), and second connecting hole is distributed on left ring body (21) and right ring body (22).

3. The pipe bell flange connector of claim 2, wherein, The two ends of left ring body (21) and right ring body (22) are equipped with end piece (23) respectively, and connecting hole is equipped on end piece (23) respectively.

4. The pipe bell flange connector of claim 1, wherein, The inner ring surface of compression ring (2) is conical surface, and its big mouth end is towards connecting body (1), and its small mouth end is towards the side away from connecting body (1).

5. The pipe bell flange connector of claim 1, wherein, Annular flange (13) is arranged between the two ends of connecting body (1), and first connecting hole is distributed in circumferential ring on annular flange (13).

6. The pipe bell flange connector of claim 5, wherein, Annular flange (13) is located between the side of flange (11) and connecting body (1), and is equipped with the web plate connecting both.

7. The pipe bell flange connector of claim 1, wherein, Connecting body (1) is equipped with sealing element (4) outside mouth end (12).

8. The pipe bell flange connector of any one of claims 1-7, wherein, Pull rod (3) is threaded rod or stud bolt, and is equipped with fastening nut at both ends respectively.

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